Battery vent adapter



FIG. 1 is a perspective view of a battery vent adapter showing our new design;

FIG. 2 is a top plan view thereof, the bottom plan view being a mirror image;

FIG. 3 is a right side view thereof, the left side view being a mirror image;

FIG. 4 is a front elevation view thereof; and,

FIG. 5 is a back elevation view thereof.

The subject matter shown in broken lines in the drawings constituting environment only and forming no part of the protection claimed. 

CLAIM We claim the ornamental design for a battery vent adapter, as shown and described. 